Definition for Cerebrospinal fluid

From Biology Forums Dictionary

1) Fluid that surrounds the exterior of the brain and spinal cord and absorbs physical shocks to the brain resulting from sudden movements or blows to the head.

2) A clear, colorless bodily fluid produced in the choroid plexus of the brain that acts as a cushion or buffer for the cortex, providing a basic mechanical and immunological protection to the brain inside the skull.